dt-bindings: soc: rockchip: Add rk3588 hdptxphy syscon

Add compatible for the hdptxphy GRF used by rk3588-hdptx-phy.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240119193806.1030214-2-cristian.ciocaltea@collabora.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

Author: cristicc

Documentation/devicetree/bindings/soc/rockchip/grf.yaml

@@ -22,6 +22,7 @@ properties:
               - rockchip,rk3568-usb2phy-grf
               - rockchip,rk3588-bigcore0-grf
               - rockchip,rk3588-bigcore1-grf
+              - rockchip,rk3588-hdptxphy-grf
               - rockchip,rk3588-ioc
               - rockchip,rk3588-php-grf
               - rockchip,rk3588-pipe-phy-grf